Psychological Models Review

This section details the validity check performed on the foundational psychological models presented in Branch 1 of the TABS series. These models form the bedrock of our understanding of individual technology adoption.

Theory of Reasoned Action (TRA)

Verification Status: Verified Accurate

The review confirmed that TRA is correctly attributed to Martin Fishbein and Icek Ajzen (1975). The core constructs—Attitude Toward Behavior and Subjective Norm leading to Behavioral Intention—are accurately described. The site correctly notes TRA's origins in social psychology rather than technology specifically.

Theory of Planned Behavior (TPB)

Verification Status: Verified Accurate

The site accurately attributes TPB to Icek Ajzen (1985, 1991) as an extension of TRA. The addition of the "Perceived Behavioral Control" construct is correctly identified as the key differentiator, addressing situations where individuals lack complete volitional control over their behavior.

Technology Acceptance Model (TAM)

Verification Status: Verified Accurate

Fred Davis's (1989) seminal Technology Acceptance Model was rigorously checked. The site correctly identifies Perceived Usefulness (PU) and Perceived Ease of Use (PEOU) as the primary determinants of technology acceptance. The historical context of TAM adapting TRA specifically for information systems is factually sound.